1. Android kernel features. http://elinux.org/Android_Kernel_Features . Accessed 03 Aug 2017
2. Android permission. http://developer.android.com/reference/android/Manifest.permission.html . Accessed 30 Aug 2016
3. Android permission categories. http://developer.android.com/guide/topics/manifest/permission-element.html . Accessed 09 Nov 2015
4. Antutu benchmark. http://www.antutu.com/en/index.shtml . Accessed 09 Feb 2016
5. Filesystem in userspace. https://en.wikipedia.org/wiki/Filesystem_in_Userspace . Accessed 09 Mar 2017